Mathematics, 07.04.2020 18:37 greece145
G A programmer plans to develop a new software system. In planning for the operating system that he will use, he needs to estimate the percentage of computers that use a new operating system. How many computers must be surveyed in order to be 99% confident that his estimate is in error by no more than four percentage points question mark Complete parts (a) through (c) below. a) Assume that nothing is known about the percentage of computers with new operating systems. equals nothing (Round up to the nearest integer.) b) Assume that a recent survey suggests that about 88% of computers use a new operating system. equals nothing (Round up to the nearest integer.) c) Does the additional survey information from part (b) have much of an effect on the sample size that is required? A. Yes, using the additional survey information from part (b) dramatically reduces the sample size. B. Yes, using the additional survey information from part (b) dramatically increases the sample size. C. No, using the additional survey information from part (b) does not change the sample size. D. No, using the additional survey information from part (b) only slightly increases the sample size.
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Mathematics, 21.06.2019 16:30
Write each fraction as an equivalent fraction with a denominator of 120then write the original fractions in order from samllest to largest
Answers: 3
Mathematics, 21.06.2019 19:00
The pyramid shown has a square base that is 24 centimeters on each side. the slant height is 16 centimeters. what is the lateral surface area?
Answers: 2
Mathematics, 21.06.2019 20:30
Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?
Answers: 1
Mathematics, 21.06.2019 21:30
Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.
Answers: 2
G A programmer plans to develop a new software system. In planning for the operating system that he...
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